Complex dielectric response and EDL characteristics of different types of ionic liquid iron oxide nanofluids (ionanofluids)

Joseph, Aswathy; Fal, Jacek; Ba̧k, Andrzej; Mathew, Suresh; Żyła, Gaweł

doi:10.1016/j.chphi.2023.100357

Cited by 3 publications

(1 citation statement)

References 62 publications

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“…While this assumption holds for many liquids, it may not be universally applicable. Liquids with complex dielectric behavior, such as specific ionic liquids and ferrofluids with intricate relaxation processes, might deviate from the Debye model [56], [57]. Future investigations could explore strategies to enhance the applicability of the proposed method, which may involve incorporating alternative permittivity models such as the Cole-Cole model, Havriliak-Negami model, or others, to accommodate a broader range of materials [50], [58].…”

Section: Table IV Calibration Equation Parameters For Each Resonancementioning

confidence: 99%

Dielectric Spectrum Extraction of Liquids Using Noncontact Microwave Split Ring Resonator

Zhu,

Baghelani,

Iyer

2024

IEEE Trans. Microwave Theory Techn.

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This article presents a novel method for broadband dielectric spectroscopy of liquids utilizing a noncontact microwave split ring resonator (SRR). The proposed approach leverages the multiharmonic property of the microwave resonator to extract the permittivity of the liquid-under-test (LUT) at resonance frequencies. By fitting these extracted values using the Debye model, both the real and imaginary dielectric spectra of the LUT can be determined across a wide frequency range. The proposed method requires a one-time calibration process to ensure high accuracy. An experiment employing five calibration samples and five test samples was performed to validate the effectiveness of the proposed method. The results of the extracted permittivity spectrum using the proposed method are compared with those from a commercial dielectric probe. The proposed method exhibits high accuracy with a root mean square error of 0.59 for ϵ ′ values at the resonance frequencies. For the extracted Debye model parameters, the proposed method achieves reasonable precision with percentage errors of 1.40% for ϵ s , 12.68% for ϵ ∞ , and 7.86% for τ and is a cost-effective and accurate solution for dielectric spectroscopy. Due to its planar structure, the microwave SRR can be seamlessly integrated into various systems, holding potential for applying this method in microwave sensing, noninvasive biological sensing, oil and gas industries, and other fields requiring dielectric spectroscopy.

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Section: Table IV Calibration Equation Parameters For Each Resonancementioning

confidence: 99%

Dielectric Spectrum Extraction of Liquids Using Noncontact Microwave Split Ring Resonator

Zhu,

Baghelani,

Iyer

2024

IEEE Trans. Microwave Theory Techn.

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show abstract

Exploring the formation of plasmonic silver nanoparticles and wide range optical energy bandgaps in ion conducting EG–SiO2/AgNO3 hybrid nanofluids for broader functionalities

Sengwa,

Saraswat

2025

Optik

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Dielectric relaxation spectroscopy of hybrid insulating nanofluids in time, distribution, and frequency domain

Havran,

Cimbala,

Dolník

et al. 2024

Journal of Molecular Liquids

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Complex dielectric response and EDL characteristics of different types of ionic liquid iron oxide nanofluids (ionanofluids)

Cited by 3 publications

References 62 publications

Dielectric Spectrum Extraction of Liquids Using Noncontact Microwave Split Ring Resonator

Dielectric Spectrum Extraction of Liquids Using Noncontact Microwave Split Ring Resonator

Exploring the formation of plasmonic silver nanoparticles and wide range optical energy bandgaps in ion conducting EG–SiO2/AgNO3 hybrid nanofluids for broader functionalities

Dielectric relaxation spectroscopy of hybrid insulating nanofluids in time, distribution, and frequency domain

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